NEWSCIENTIST | Holiday long reads
Test your brain on these mind-bending scientific riddles
挑战你的智力，解答这些令人费解的科学谜题
2025-12-10 520词 中等
(2) Our local, friendly scientist has sent us a homemade Christmas card, how sweet. It looks like they have created the message on the front with some odds and ends they found around the lab… let’s see:
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